With three sons in their twenties, and a teenage daughter who’s determined to carve out her own identity, Victoria Beckham could be forgiven for losing track of her kids’ movements from time to time. But the pop star turned fashion designer has rejected any suggestion that she might not know where Brooklyn, Romeo, Cruz and Harper might be at any given moment: “Absolutely not,” she told the Daily Mail , “we have a family chat group, and we all know where each other are.” Victoria, 51, explained